Power supply circuit for producing a reference current with a prescribable temperature dependence
AssigneeATMEL Germany GmbH
InventorWolfgang Eckstein
Life of this patent
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Abstract
A power supply circuit is provided for producing a reference current with a prescribable temperature dependence. The circuit includes two current sinks, which at their respective input take up a first input current (I1) or a second input current (I2), and in which current sinks at their respective outputs are connected to a node having a reference potential, the output of at least one current sink being connected via a resistor to the node having the reference potential. The resistor is formed by least two reference resistors with prescribable temperature coefficients that are preferably different from one another.
Claims9
A power supply circuit for producing a reference current with a prescribable temperature dependence, the power supply circuit comprising:
- a resistor formed by at least two reference resistors having prescribable temperature coefficients that are different from one another;
- and
- two current sinks, which at their respective input have a first input current or a second input current, and in which the current sinks at their respective outputs are connected to a node having a reference potential, the output of at least one current sink being connected via the resistor to the node having the reference potential.
Dependencies are inferred from the claim text.